Name Resolution

Ways to resolve a name to an IP: #

  • Local
    • Can broadcast for name resolution
    • one-to-one DNS name to IP address resolution possible
  • Hosts file - Modern hosts automatically map hosts file to the host’s DNS resolver cache
  • DNS - Resolves an IP using DNS

DNS Server Settings #

  • Windows: ipconfig /all
    • DNS cache: ipconfig /displaydns
  • Linux: cat /etc/resolv.conf

Process #

Starting with the local DNS server, the device resolves the name by working up from the root domain and the respective nameservers for those names.